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The de Broglie wavelength of electron in second Bohr orbit is exactly equal to

The de Broglie wavelength of an electron is 66 nm. The velocity of the electron is (h=6.6xx10^(-34)kgm^(2)s^(-1)m=9.0xx10^(-31)kg)

The de Broglie wavelength of a particle with mass 1 g and velocity 100 m/s is:

The de Broglie wavelength associated with a particle of mass 10^-6 kg with a velocity of 10 ms^-1 is (h=6.625 × 10^-34Js)

The de Broglie wavelength associated with a material particle is:

The dcecomposition of a substance follows first order kinatics. Its concentraction is reduced to (1)/(8)th of its initial value in 24 minutes. The rate constant of the decomposition process is

The data given below are for the reactionof NO and Cl_(2) to form NOCl at 295 K [Cl_(2)]""[NO]"""initial rate(mol litre"^(-1)"sec"^(-1)) 0.05""0.05""1xx10^(-3) 0.15""0.05"3xx10^(-3) 0.05""0.15""9xx10^(-3) If [Cl_(2)] is halved and (NO) is double the rate of the reaction is ________

The data given below are for the reactionof NO and Cl_(2) to form NOCl at 295 K [Cl_(2)]""[NO]"""initial rate(mol litre"^(-1)"sec"^(-1)) 0.05""0.05""1xx10^(-3) 0.15""0.05"3xx10^(-3) 0.05""0.15""9xx10^(-3) The reaction rate when conc. of Cl_(2) an NO are 0.2 M and 0.4 M respectively is

The data given below are for the reaction of NO and Cl_(2) to form NOCl at 295 K [Cl_(2)]""[NO]"""initial rate(mol litre"^(-1)"sec"^(-1)) 0.05""0.05""1xx10^(-3) 0.15""0.05"3x10^(-3) 0.05""0.15""9xx10^(-3) The rate constant of the reaction is

The data for the conversion of compound A into its isomeride B are as follows : {:("Time is hr :",,,0,,,1,,,2,,,3,,,4,,,oo),(%"age of A :",,,49.3,,,34.6,,,25.8,,,18.5,,,13.8,,,4.8):} Show that this is a first order reaction.

The dark blue colour of the solution formed when excess of ammonia is added to a solution of copper (II) sulphate is due to the presence of the ion

The d_(111)spacing for crystalline K is 0.3079 ran, Calculate the length of the cubic unit cell.

The 'd' orbitals will be split under square planar geometry into

The d-orbitals involved in sp^(3)d^(2) or d^(2)sp^(3) hybridization of the central metal ion are:

The d-orbitals involved in sp^(3)d^(2) or d^(2)sp^(3) hybridisation of the central metal ion are :

The d orbitals involved in d^(2)sp^(3) hybridization are …………….

The d-orbitals involved in sp^(2)d and sp^(3)d^(2) hybridisation are respectively :

The d orbital involved in the dsp^(3) hybridisation of Fe(CO)_(5)] is ...............

The d orbital involved in dSP3 hybridisation of [Fe(CO)_(5)] is………..

The d-electron configuration of Mn^(2+) and Ti^(2+) is d^(5) and d^(2), respectively. Which one of these ions will be more paramagnetic ?

The d-electron configuration of Cr^(2+), Mn^(2+),Fe^(2+) and Co^(2+)are d^4, d^5,d^6 and d^7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour ? (At. Nos. Cr=24 , Mn=25 , Fe=26 , Co=27)

The d-block elements form______________compounds and complexes.

The d-block consisting of groups______________occupies the large middle section of the periodic table.

The d and l enantiomers of an optically active compound differ in

The cyclobutyl methylamine with nitrous acid gives

The cyclic form of fructose is called……………

The cyclic structure of glucose with 5 carbon and one oxygen atom is called……………

The cyclic ether tetrahydrofuran (THF) can be synthesized by treating 4-chloro-1-butanol with aqueous sodium hydroxide (see below). Propose a mechanism for this reaction.

The cyanide ion, CN^(-), N_(2) and N_(2) are isoelectronic. But in contrast to CN^(-), N_(2) is chemically inert, because of

The cyanide ion, CN^(-) and N_(2) are isoelectronic. But in contrast to CN^(-), N_(2) is chemically inert because of

The cyanide ion, CN^(-) and N_(2) are isoelectronic. But in contrast to CN^(-),N_(2) is chemically inert, because of

The cyanide complex of silver formed in the silver extraction in Mac-Arthur's Forrest cyanide process is:

The value of enthalpy change (Delta H) for the reaction : C_(2)H_(5)OH(l) + 3O_(2)(g) rarr 2CO_(2)(g) + 3H_(2)O(l) at 27^(@)C is - 1366.5 kJ mol^(-1). The value of internal energy change for the above reaction at the temperature will be :

The curve showing variation of x/m with temperature is inverted 'V' shape. What is the type of adsorption ?

The curve showing the variation of pressure with temperature for a given amount of adsorption is called

The curve showing the variation of pressure with temperature for a given amount of adsoption is called

The curve showing the variation of adsorption with pressure at constant temperature is is called :

The curve showing the variation of adsorption with pressure at constant temperature is called:

The curve represents the titration of :

The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is incorrect (in the low pressure region):

The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is/are incorrect (in low pressure region):

The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph. Which of the following is incorrect (in the low pressure region)?

The curve in the accompanying diagram represent the PV//RT behaviour of the gases: He, CH_(4) and C_(3)H_(8). Which assignment of behavior for gas is correct ?

the current statement on the Aufbau principle is that

The current strength required to displace 0.1 g. of H_2 in 10 sec is

The current required to diplace 0.1 g of H_(2) in 10 seconds will be